32CrB4 wire is a cold heading steel wire rod. The chemical composition ratio of 32CrB4 wire is specific, maintaining stable performance, making it have high strength and hardness, which can meet the manufacturing needs of various high-strength and high-hardness mechanical parts, and can also withstand high temperature and high pressure working environment; it is suitable for cold heading forming manufacturing, which is not only efficient and good quality, but also saves materials and has low cost.

Chemical element content (%)

Specification：2.00~42.00mm

Application: Commonly used to manufacture high-grade cold-formed fasteners, special-shaped parts, such as wheels, drive shafts, suspension systems and other important parts, bearings, gears, crankshafts and other high-strength, high-hardness mechanical parts, etc.; widely used in automobiles, electronics, machinery and other industries.

Mechanical properties:

-Wire diameter 5d≤40, spheroidized or spheroidized and peeled (+ac or +ac+pe), the tensile strength σb≤550MPa, the cross-sectional shrinkage ψ≥62%;

-Wire diameter 2d≤5, without heat treatment, cold drawing and spheroidizing treatment (+u+c+ac), the tensile strength σb≤550MPa, the cross-sectional shrinkage ψ≥64%;

-Wire diameter 5d≤40, without heat treatment, cold drawing and spheroidizing treatment (+u+c+ac), the tensile strength σb≤530MPa, the cross-sectional shrinkage ψ≥64%;

-Wire diameter 2d≤5, without heat treatment and In the state of cold drawing, spheroidizing treatment and tempering rolling (+u+c+ac+lc), the tensile strength σb≤590MPa, and the cross-sectional shrinkage ψ≥62%;

-Wire diameter 5d≤40, without heat treatment, cold drawing, spheroidizing treatment and tempering rolling (+u+c+ac+lc), the tensile strength σb≤570MPa, and the cross-sectional shrinkage ψ≥62%;

-Wire diameter 5d≤40, spheroidizing treatment and cold drawing (+ac+c), the tensile strength σb≤670MPa, and the cross-sectional shrinkage ψ≥57%.

Note that the specific performance may vary depending on the actual production and processing technology.